EFFECTS OF NUCLEATION AGENTS ON EFFICIENCY OF BORON EXTRACTION FROM MgO-B2O3-SiO2 SLAGS
(1.Department of Nonferrous Metallurgy; Northeastern University; Shenyang 110006
2.Changsha Research Institute of Mining and Metallurgy; Changsha 410012)
2.Changsha Research Institute of Mining and Metallurgy; Changsha 410012)
Abstract: The effects of titania and the complex oxide as nucleation agents on the efficiency of boron extraction(EBE) from MgO-B2O3-SiO2 slags were investigated by means of chemical analysis, polarization microscope and X-ray diffraction (XRD).The results showed that titania promoted the glass phase separation, thus increasing the crystallinity, therefore, the EBE were obviously improved.The complex oxide as nucleation agent had more remarkable effect than titania, Moreover, the lower the EBE was before addition of nucleation agents,the higher the EBE was in creased after addition.
Key words: slag containing boron; nucleation agent boron extraction